FR1484006A - Dispositif de signalisation à boutons-poussoirs - Google Patents

Dispositif de signalisation à boutons-poussoirs

Info

Publication number
FR1484006A
FR1484006A FR62169A FR62169A FR1484006A FR 1484006 A FR1484006 A FR 1484006A FR 62169 A FR62169 A FR 62169A FR 62169 A FR62169 A FR 62169A FR 1484006 A FR1484006 A FR 1484006A
Authority
FR
France
Prior art keywords
pushbutton
signaling device
signaling
pushbutton signaling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR62169A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1484006A publication Critical patent/FR1484006A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/515—Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of dc signals of alternating polarity, coded pulses or impedance dialling

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Push-Button Switches (AREA)
  • Devices For Supply Of Signal Current (AREA)
FR62169A 1965-05-19 1966-05-18 Dispositif de signalisation à boutons-poussoirs Expired FR1484006A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6506342A NL6506342A (fr) 1965-05-19 1965-05-19

Publications (1)

Publication Number Publication Date
FR1484006A true FR1484006A (fr) 1967-06-09

Family

ID=19793183

Family Applications (1)

Application Number Title Priority Date Filing Date
FR62169A Expired FR1484006A (fr) 1965-05-19 1966-05-18 Dispositif de signalisation à boutons-poussoirs

Country Status (10)

Country Link
US (1) US3483332A (fr)
JP (1) JPS4326130B1 (fr)
AT (1) AT254952B (fr)
BE (1) BE681182A (fr)
CH (1) CH439404A (fr)
DE (1) DE1256713B (fr)
DK (1) DK112390B (fr)
FR (1) FR1484006A (fr)
GB (1) GB1095616A (fr)
NL (2) NL6506342A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8614199D0 (en) * 1986-06-11 1986-07-16 Salplex Ltd Information handling & control systems

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428016A (en) * 1944-04-21 1947-09-30 Int Standard Electric Corp Key-sender for telecommunication systems
BE466584A (fr) * 1944-04-21
US2438496A (en) * 1944-05-01 1948-03-30 Int Standard Electric Corp Telephone system employing key type call transmitter
US2596025A (en) * 1948-01-03 1952-05-06 Ericsson Telefon Ab L M Signaling over telephone lines by means of a nonlinear resistance
DE1185665B (de) * 1963-09-14 1965-01-21 Standard Elektrik Lorenz Ag Tastengesteuerter Mehrfrequenz-Tongenerator

Also Published As

Publication number Publication date
GB1095616A (en) 1967-12-20
JPS4326130B1 (fr) 1968-11-11
CH439404A (de) 1967-07-15
DE1256713B (de) 1967-12-21
BE681182A (fr) 1966-11-17
DK112390B (da) 1968-12-09
US3483332A (en) 1969-12-09
AT254952B (de) 1967-06-12
NL6506342A (fr) 1966-11-21
NL134703C (fr)

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